This can be proven for any valid argument form using a truth table which shows that there is no situation in which there are all true premises and a false conclusion.
Founded in 1994, IntraLearn Software Corporation (ISC) is a pioneer of creating e-Learning and Knowledge Organization products for corporate enterprises, academic institutions, associations, government agencies and training suppliers.
In 1985, Southwestern Bell Corporation acquired a 50 percent ownership share of Aurec Information & Directory Systems, and its name was changed to Amdocs. Within two years, the Aurec Group sold off all its holdings in Amdocs for almost US$1 billion.